diff --git a/test/unit/sources/tumblr_test.rb b/test/unit/sources/tumblr_test.rb
new file mode 100644
index 000000000..4f89e4a93
--- /dev/null
+++ b/test/unit/sources/tumblr_test.rb
@@ -0,0 +1,136 @@
+require 'test_helper'
+
+module Sources
+  class TumblrTest < ActiveSupport::TestCase
+    context "The source for a 'http://*.tumblr.com/post/*' photo post with a single image" do
+      setup do
+        @site = Sources::Site.new("https://noizave.tumblr.com/post/162206271767")
+        @site.get
+      end
+
+      should "get the artist name" do
+        assert_equal("noizave", @site.artist_name)
+      end
+
+      should "get the profile" do
+        assert_equal("https://noizave.tumblr.com/", @site.profile_url)
+      end
+
+      should "get the tags" do
+        tags = [["tag", "https://tumblr.com/tagged/tag"], ["red_hair", "https://tumblr.com/tagged/red-hair"]]
+        assert_equal(tags, @site.tags)
+      end
+
+      should "get the commentary" do
+        desc = <<-EOS.strip_heredoc.chomp
+          <h2>header</h2>
+
+          <hr><p>plain <b>bold</b> <i>italics</i> <strike>strike</strike></p>
+
+          <!-- more -->
+
+          <ol><li>one</li>
+          <li>two</li>
+          </ol><ul><li>one</li>
+          <ul><li>two</li>
+          </ul></ul><blockquote><p>quote</p></blockquote>
+
+          <p><a href=\"http://www.google.com\">link</a></p>
+        EOS
+
+        assert_nil(@site.artist_commentary_title)
+        assert_equal(desc, @site.artist_commentary_desc)
+      end
+
+      should "get the image url" do
+        assert_equal("http://data.tumblr.com/3bbfcbf075ddf969c996641b264086fd/tumblr_os2buiIOt51wsfqepo1_raw.png", @site.image_url)
+      end
+    end
+
+    context "The source for a 'http://*.tumblr.com/image/*' image page" do
+      setup do
+        @site = Sources::Site.new("https://noizave.tumblr.com/image/162206271767")
+        @site.get
+      end
+
+      should "get the image url" do
+        assert_equal("http://data.tumblr.com/3bbfcbf075ddf969c996641b264086fd/tumblr_os2buiIOt51wsfqepo1_raw.png", @site.image_url)
+      end
+
+      should "get the tags" do
+        tags = [["tag", "https://tumblr.com/tagged/tag"], ["red_hair", "https://tumblr.com/tagged/red-hair"]]
+        assert_equal(tags, @site.tags)
+      end
+    end
+
+    context "The source for a 'http://*.media.tumblr.com/$hash/tumblr_$id_1280.jpg' image with a referer" do
+      setup do
+        @url = "https://68.media.tumblr.com/7c4d2c6843466f92c3dd0516e749ec35/tumblr_orwwptNBCE1wsfqepo2_1280.jpg"
+        @ref = "https://noizave.tumblr.com/post/162094447052"
+        @site = Sources::Site.new(@url, referer_url: @ref)
+        @site.get
+      end
+
+      should "get the image urls" do
+        urls = %w[
+          http://data.tumblr.com/afed9f5b3c33c39dc8c967e262955de2/tumblr_orwwptNBCE1wsfqepo1_raw.png
+          http://data.tumblr.com/7c4d2c6843466f92c3dd0516e749ec35/tumblr_orwwptNBCE1wsfqepo2_raw.jpg
+          http://data.tumblr.com/d2ed224f135b0c81f812df81a0a8692d/tumblr_orwwptNBCE1wsfqepo3_raw.gif
+          http://data.tumblr.com/3bbfcbf075ddf969c996641b264086fd/tumblr_inline_os3134mABB1v11u29_raw.png
+          http://data.tumblr.com/34ed9d0ff4a21625981372291cb53040/tumblr_nv3hwpsZQY1uft51jo1_raw.gif
+        ]
+
+        assert_equal(urls, @site.image_urls)
+      end
+
+      should "get the tags" do
+        tags = [["tag1", "https://tumblr.com/tagged/tag1"], ["tag2", "https://tumblr.com/tagged/tag2"]]
+        assert_equal(tags, @site.tags)
+      end
+
+      should "get the commentary" do
+        desc = '<p>description</p><figure data-orig-width="1152" data-orig-height="648" class="tmblr-full"><img src="https://68.media.tumblr.com/3bbfcbf075ddf969c996641b264086fd/tumblr_inline_os3134mABB1v11u29_540.png" data-orig-width="1152" data-orig-height="648"/></figure><figure class="tmblr-full" data-orig-height="273" data-orig-width="300" data-tumblr-attribution="skeleton-war-draft:nYQhsQFR8-n3brTTGanKzA:Ze6nYj1umLk8W"><img src="https://68.media.tumblr.com/34ed9d0ff4a21625981372291cb53040/tumblr_nv3hwpsZQY1uft51jo1_400.gif" data-orig-height="273" data-orig-width="300"/></figure>'
+        assert_equal(desc, @site.artist_commentary_desc)
+      end
+    end
+
+    context "The source for a 'http://*.tumblr.com/post/*' text post with inline images" do
+      setup do
+        @site = Sources::Site.new("https://noizave.tumblr.com/post/162221502947")
+        @site.get
+      end
+
+      should "get the image urls" do
+        urls = %w[
+          http://data.tumblr.com/afed9f5b3c33c39dc8c967e262955de2/tumblr_inline_os2zhkfhY01v11u29_raw.png
+          http://data.tumblr.com/7c4d2c6843466f92c3dd0516e749ec35/tumblr_inline_os2zkg02xH1v11u29_raw.jpg
+        ]
+
+        assert_equal(urls, @site.image_urls)
+      end
+
+      should "get the commentary" do
+        desc = '<p>description</p><figure class="tmblr-full" data-orig-height="3000" data-orig-width="3000"><img src="https://68.media.tumblr.com/afed9f5b3c33c39dc8c967e262955de2/tumblr_inline_os2zhkfhY01v11u29_540.png" data-orig-height="3000" data-orig-width="3000"/></figure><figure class="tmblr-full" data-orig-height="3000" data-orig-width="3000"><img src="https://68.media.tumblr.com/7c4d2c6843466f92c3dd0516e749ec35/tumblr_inline_os2zkg02xH1v11u29_540.jpg" data-orig-height="3000" data-orig-width="3000"/></figure>'
+
+        assert_equal("test post", @site.artist_commentary_title)
+        assert_equal(desc, @site.artist_commentary_desc)
+      end
+    end
+
+    context "The source for a 'http://*.tumblr.com/post/*' video post with inline images" do
+      setup do
+        @site = Sources::Site.new("https://noizave.tumblr.com/post/162222617101")
+        @site.get
+      end
+
+      should "get the image urls" do
+        urls = %w[
+          https://vtt.tumblr.com/tumblr_os31dkexhK1wsfqep.mp4
+          http://data.tumblr.com/afed9f5b3c33c39dc8c967e262955de2/tumblr_inline_os31dclyCR1v11u29_raw.png
+        ]
+
+        assert_equal(urls, @site.image_urls)
+      end
+    end
+  end
+end